Enoch e



ENO-ou E. s'rUBBS, or WEsr-ELK'ro-N, oue.

"Letters Patent No. l75,488, dated' Mr'ch 10,1868.

AImproves BOLTFASTEMNG.

@Le rrigrxrde einer tu iu this: -@when atuit mit mating part if tige sume..

TO ALL WHQM 'IT MAY CONCERN:

u Be it known that I, 'ENOGH EfSjrUB-BS, .of WestyElkton, in Preble county, Ohio, have invented a neu' and I useful Improvement in4 Bolt-Fastenings, which I denominate o. Safety-Bolt and I do hereby declare thzitithe following is u full und ekac't description thereof, reference being hadto the accompanying drawings and to the letters of reference marked thereon. c l

Figure 1 represents a. front `vieivv of. my improvement g'rcnd Figure 2 is @sectional view, taken at the line :t a: Vof gl 1. In the drawings, A denotes-erholt for ,fdstenngia door. Y In theend of the bolt there is n recess or chamber, 2.

uC represents' n'. portion of n door-jamb, to which the clasp D is mudo fast in the usual manner. l There is secured v to the outer portion of the clasp D, u spring, e, -dog a, und key d, as represented in see'tionalg'. 2. The key d slides in n groove mudelongitudinally in the upper portion oftheclusp,4with its wedge-sl1aped lower end in 'such relation to the dog a es to slide beneath it und raise it, with' its spring e, vwhich holds the dog, with'suii cient forcevto cause its detent, i', to enter an aperture in the clasp, and `Jccupy the recess 2 in the Aendet boltA,

A when the key `oZ is withdrawn from beneath Vthe upper end of dog d. The projection on the outer and upper end of key il is designed for the thumb of a person to conveniently move the key down to unfasten the bolt. 'The spring'e, which rests against the doge, is fstened to `the clasp at one en d, and the dog or tumbler a has' a, rocking action when moved by the key d, or depressedlbythe spring e. The action of -the key is to -be given by the hund of ulperson inside the house. v

The advantage of placing the bolt-fastening'in the clasp, insteud'of attaching it to 'the lock, as has been done, is to make access to it from outside the house-much more .diiiicultl The door-jumb to whichithe clasp' is nlwuys attached, being always' more rni and thicker thenthe door of the house, bnrglurs cannot so easily endlreadily remove the l bclt-fustening when so placed, as when-in immediate connection with the door-lock.

' When the key d is withdrawn, es indicated in 'g. 2, the bolt may be thrust-under the dog a, which will'reise the dog,.o.nd cause thedetent'z' to full into the recess or chamber 2i of' the bolt A, and the dog may be raised by depressing or sliding the key4 down with its wedge-formed end benen-th the upper end of dog @which raises tb e. detent'e' out of recess or notch -2 in the bolt. l

Lock-bolts have heretofore'been fastened, after locking,-by means of a. lever, with a cum or projection in the upper edge of thel-ock, but these devices ur'e so constructed Vas to beunfsstened by means-,of eny instrument which'wll penetrate the thickness of a. door, rlfhe clasp'wth the holtfasteningin1ay be nsed to secure thebolts of locks, or .bolts used separately from locks, and vit may be substituted for the ordinary clasp,r1 without any 4 alteration of the lock or bolt, other than tha-t of forming a. recess or notch in' the side of the bolt near its end,

for the entrslnce of the det'ent z', 'which secures the bolt -`from being 'withdrawn until the key d is thrust down under the upper end of' tumbler or `dog a. p

What I claimas my invention, s nd desire to secure by Letters Patent, isl The combination of key al, dog a, and spring e, with the clusp D and recessedl bolt A, when the' several .parts-ure constructed, arranged, und operateconjointly in the manner and for the purpose specified. l

In testmony whereof, I have hereunto set my hund, this 4th dufy of Jui`1e,18'6'(.

ENocH sTUBBs Witnesses:

'EL P. K. Puck, .-D. H. geen. i 4 

